Home / 102,672,001.20-154,008,001.80-82,516,609.20

Finding the Fourth Proportional to 102,672,001.20, 154,008,001.80 and 82,516,609.20

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Solution

The fourth proportional to 102,672,001.20, 154,008,001.80 and 82,516,609.20 is: 123,774,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,672,001.20 : 154,008,001.80 = 82,516,609.20 : x
  2. Step 2: Convert to fraction form
    102,672,001.20/154,008,001.80 = 82,516,609.20/x
  3. Step 3: Cross multiply
    102,672,001.20x = 154,008,001.80 × 82,516,609.20
  4. Step 4: Simplify right side
    102,672,001.20x = 12,708,218,098,203,498
  5. Step 5: Solve for x
    x = 12,708,218,098,203,498/102,672,001.20
  6. Step 6: Final answer
    x = 123,774,913.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.